N55 Reliability Despite the many misconceptions that BMW's as a whole are unreliable, the BMW N55 is actually a fairly reliable engine. The four most common problems with the N55 are, in no specific order, the valve cover and gasket, water pump, oil filter housing gasket, and VANOS solenoids.Dec 2, 2021
How long will a N55 engine last?
How long will a BMW N55 engine last? The BMW N55 motor should have no problem lasting over 150,000 miles, and some owners report getting over 250,000 miles out of their engines.
Which engine oil is recommended for BMW?
The brands that BMW uses are the Mobil Full Synthetic 5W-30 High Mileage, Mobil 1 SAE 0W-40, Valvoline SynPower SAE 5W-30 or Castrol Syntec European Formula SAE 0W-30. BMW is recommending Shell/Pennzoil PurePlus Oils as their aftermarket oil since 2015.
Can I use 5W-30 instead of 0w30 BMW?
The only difference between the two is the viscosity of the oils at -30°C and below . The 0W-30 will flow better than the 5W-30. So unless you live in the far north, don't worry about it. Now, to achieve this flow at cold temperatures.
Which is better 5W-30 or 5w40?
In general, 5w30 is a great multi-grade oil for different temperature specters. It is also more fuel efficient. 5W40 is a motor oil that penetrates to the active mechanisms faster, and provides excellent lubrication on start up.
BMW N55 engine
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What kind of oil do I need for a 335i BMW?
7 liters 5W-30 BMW 335i motor oil, oil filter, and hardware for 3.0L 24V, including 335i / 335xi E90, E92, E93, F30, and F34 applications. Oil carries OEM approval for BMW Longlife-01 oil standard. BLAU® BMW oil change kits consist of everything to perform the highest quality BMW 335 oil change.